!!! This crate is not stable yet. !!!

Reliq

A Numeric & Data Structure Toolkit designed for Portability.

A lightweight, no_std compatible library providing fixed-capacity arrays, UTF-8 strings, fixed-precision numeric types, and a generic numeric trait hierarchy. It is designed for portability where heap allocation may be undesirable, and predictablee arithmetic behaviour is required.

Fixed-Capacity Arrays

• `Array<const A: usize, B> -- stack-allocated, compile-time sized array.
• Supports:
  • push, pop, insert, remove.
  • swap_insert / swap_remove for unordered collections.
  • Conversion to slices as_slice, as_mut_slice, and iteration.

let mut arr: Array<4, u8> = Array::default();
arr.push(1).unwrap();
arr.push(2).unwrap();
arr.swap_insert(0, 5).unwrap();
assert_eq!(arr.len(), 3);

UTF-8

• Utf8<const A: usize> -- fixed-capacity Utf8 string.
• Supports safe push/pop of char, casting between capacities, and encoding/decoding from byte slices.
• Implements Display, Debug, PartialEq, Eq, Ord, and PartialOrd.

let mut s: Utf8<16> = Utf8::default();
s.push('H').unwrap();
s.push('i').unwrap();
assert_eq!(s.as_str(), "Hi");

Example

let mut value = 0;
let result = require(&mut value, |v| {
    *v += 1;
    Err("rollback")
});
assert_eq!(value, 0);

License

Apache-2.0

What the app wants, not what is uses.